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Home Brew Forums > Home Brewing Beer > DIY Projects > Fermenters > DIY glycol chilled plastic conical fermenters
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Old 05-30-2013, 11:32 PM   #21
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Quote:
Originally Posted by kickflip_mj View Post
How often do you expect the AC unit to run?
Hopefully fairly rarely. The temp of the glycol isn't all that critical. So, I plan on giving a fairly wide margin on the glycol temp to keep the cycles to a minimum.


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Old 05-30-2013, 11:39 PM   #22
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I know if you ran it all day everyday it would be around $2 a day, how does the system work? I know the chiller is in Glycol.


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Old 05-31-2013, 12:37 AM   #23
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Subscribed. Sounds like awesome stuff.
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Old 05-31-2013, 01:25 AM   #24
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Quote:
Originally Posted by kickflip_mj View Post
I know if you ran it all day everyday it would be around $2 a day, how does the system work? I know the chiller is in Glycol.
An updated version of this:

http://byo.com/brown-ale/item/1877-b...ycol-fermenter

AC coils go in the glycol to chill it, a submersible pump circulates the glycol through the lines. Motorized ball valves decide which conical gets cooled.

Inside the conicals will be an immersion chiller to circulate the glycol

To control it all, I'm using a BCS-460. One temp probe monitors the temp of the glycol and turns on the AC unit when it gets above a set point.

The other 3 temp probes control conicals. When a conical needs to be chilled, the pump gets turned on an a ball valve gets actuated to cool it.

If it needs to be heated, there will be heat tape around the conical. I'm not quite sure how effective this will be, but we'll see how it goes.
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Old 05-31-2013, 01:05 PM   #25
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Quote:
Originally Posted by barryfine View Post
Looking forward to seeing your progress! This is on my to-do list as well. Unfortunately, my list is getting really long. ;-)

edit: One thought on your design. Instead of controlling the pump with the bcs, couldn't you just get a pressure activated diaphragm pump and then just use the bcs to control the solenoid valves for the glycol going to each conical? This way the pump will turn on automatically as needed. My apologies if this is your plan and I misunderstand your description.
Barryfine, do you happen to have any links to such a pump. I have a different application that I'm working on that might really benefit from such a thing.
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Old 05-31-2013, 02:47 PM   #26
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Originally Posted by mjohnson View Post
Barryfine, do you happen to have any links to such a pump. I have a different application that I'm working on that might really benefit from such a thing.
Here is a cheap 12V version of what I'm talking about. They're commonly used in RVs to pump water to the sinks as needed. You can find a bunch of different ones like this if you search for "diaphragm pump rv". They also make heavy duty ones if you need something with more power.

http://www.ebay.com/itm/150998230266?hlp=false
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Old 06-01-2013, 05:06 AM   #27
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Four coats of waterlox and a bunch of paint later:



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Old 06-01-2013, 04:01 PM   #28
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Here's what I'm basing the plumbing for the glycol lines on:



Obviously without the plate cooler or cold room.
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Old 06-06-2013, 11:48 PM   #29
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Pex lines are in place for the glycol:

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Old 06-07-2013, 12:05 AM   #30
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That is awesome


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